Floor construction.



G. GIBBS. FLOR CONSTRUCTION. APPLICTION FILED IAB. 27, 1905.

PATENT OFFICE.

GEORGE GIBBS, NEW YORK, il. Y.

FLOOR CONSTRUCTION.

Specification of Application led March 27,

To (all 711/110771/ llt 1mm/concern:

Be it known that 1, GEORGE Giens, a citizen of the United States, residing at New York, State of New York, have invented a certain new and useful Improvement in Floor Construction, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and 4use the same, reference being had to the accompanying drawings, forming part of' this specification, in which- Figure 1 is a sectional view through my im' proved iioor construction. Fig. 2 is afsectional View on line 2 2 of Fig. 1. Fig. 3 is a sectional View of a modified form of Hoor construction, and Fig. 4 is a sectional view on line 4 4 of Fig. 3.

This invention relates to a new and useful improvement in iioor construction designed particularly for railwayr rolling-stock, although it is obvious that the same may be used in bridges, buildings, &c.

The object of this invention is to provide a fireproof and an electric-arc-proof flooring which in its construction is sufficiently rigid to carry the superposed Hoor-load between the sills or joists, as the case may be.

Another object of the invention, where it is used as a fiooring for passenger-coaches in railway rolling-stock, is to have the same sounddeadening and also light and effective.

With these objects in View the invention consists in the construction, arrangement, and combination of the several parts, all as will be hereinafter described and afterward Apointed out in the claims.

In the drawings, 1 indicates one of the longitudinal sills of the car-underframing; but it is obvious that in car construction here are two or more of such sills, and also th t there may be cross sills or transoms forming the floor-supports at intervals, according to the character of the underframing employed by the designer. The underframe or substructure forms no part of' my present invention. Upon the substructure, irrespective of its nature, my improved floor is designed to be placed, and this floor consists, according to the l construction shown in Figs. 1 and 2, of' two corg rugated metal plates 2 and 3, the corrugations thereof matching or being in vertical aline- L ment, so that the space between said plates is l substantially of uniform width. This space I, is filled with fireproof insulating material 4and 5 is preferably a plaster composition known as monolith or it maybe'a com position includl Letters Patent.

1905. Serial No. 252,232.

Patented Sept. 12, 1905.

ing asbestos as one of its constituent elen'ients. The composite sheet, however, between the plates 2 and 3 formsa fireproof' and an electricarc-proof layer and from its serpentine shape is suiiiciently stiff' to assist in carrying the superimposed door-loads. Suitable fastening' devices 5 are provided to secure this metalfaced flooring to the substructure.

6 indicates a sheathing' preferably composed of tongue-grooved iiooring-stri ps constituting a wooden floor, which is secured to the metalfaced Hooi-ing by means of' suitable securing devices 7. `Upon this wooden iioor are arranged Hoor-strips 8, secured in placeby ordinary wood-screws, as shown. Where the fiooring is used in railway rolling-stock these strips 8 run longitudinally of the car.

In Figs. 3 and 4 there is shown a modified form of ioor construction in which there is a single corrugated metal plate 2, the lireproof insulation material 4 being' arranged thereon, and instead of having its upper face follow the con tour of the corrugated sheet "l" said upperface is made straight, so as to provide a iiat surface. On this flat surface are arranged the wooden strips 8, whose securing woodscrews pass down into the lireproof insulation material 4.

I am aware that minor changes in the construction,arrangement,and combination ofthe several parts of my device can be made and lsubstituted fox" those herein shown and de- 's'cribed without 1n the least departing from the nature and principle of my invention.

Having thus described my invention, what l claim as new, and desire to secure by Letters Patent, is--.

1. A floor construction comprising parallel metal plates with an interposed filler of fireproof insulating' material; substantially as described.

2. A floor construction comprising parallel, matching corrugated metal plates with an interposed filling of fireproof insulating material; substantially as described.

3. A door construction for railwa,\\'cars comprising parallel plates so constructed as to s support vertically-applied loadsfand iireproof insulating material arranged between said metal plates, and wooden strips on oneof' the plates; substantially as described.

4. The combination with a substructure, of' parallel,corrugated metal plates secured thereto, a layerof fireproof insulating material interposed between said corrugated metal plates, and wooden strips which extend at an angle to IOCI the corrugations in said plates; substantially as described. i

5. In a Hoor construction for railway-oars, the combination with the members of the underframe, of a metal plate formed with corrugations extending'transversely the longitudinal axis of the car-body, a layer of {ireproof insulation material upon said corrugated metal plate, wooden strips upon said layer of material, said wooden strips extending longitudinally the car-body, and means for secu ring said wooden strips to the said layer of material;I substantially as described.

6. The combination with a substructure, of

corrugated metal plates having an interposed layer of tireproof insulation material, means for securing said plates and interposed layer to said substructure, a Wooden floor, means for securing said floor to said plates and interposed layer, and strips arranged upon said wooden floor; substantially as described.

In testimony whereof I hereunto aflix my signature.in the presence of two \vitnesses,tl1is 23d da;7 of March, 1905.

GEORGE GIBBS. lVitnesses:

W. L. MURRAY,

H. S. JoHNsoN. 

